BOSTON — The Rockies massaged their roster without losing any pitchers. Relievers Chris Volstad and Logan Kensing were outrighted off the 40-man roster Monday after clearing waivers, and accepted assignments in Triple-A Colorado Springs.

Volstad could resume starting in Triple-A. He was called up recently to help an exhausted bullpen, but struggled. Kensing replaced Volstad, but the Rockies chose to carry five outfielders rather than 13 pitchers. As a result, he was designated for assignment when outfield prospect Corey Dickerson was promoted on Friday.

Kensing was the most successful reliever for the Sky Sox, and could return given the Rockies struggling relievers like Wilton Lopez, Manny Corpas and Matt Belisle, who insists he’s healthy but has allowed 10 earned runs in his last six appearances.